Here are your best steps to recompress a
Blu-ray disc to fit onto a
DVD-9 (
BD-9) or
DVD-5 (BD-5)...
1) Load your main movie file into tsMuxeR. It will usually be the biggest file in this directory: BDMV\STREAM\00000.m2ts.
2) Demux the desired streams (advisable to select regular
Dolby Digital (
AC3) or
DTS.
Dolby TrueHD,
DTS HD Master Audio/High
Resolution Audio or PCM 5.1 (uncompressed audio) are going to inflate final file size too much.
3) Remux video only (no audio) into
MKV or
MP4 container (
MeGUI,
YAMB or
MKVtoolnix are recommended). This step is not 100% necessary but I use it to increase compatibility with different encoding applications (or
AVIsynth).
4) Use a
bitrate calculator to work out final file size. Don't forget to take your audio stream into consideration. You will also need to add 6% for the M2TS/Blu-ray headers (this container has quite a lot of information stored as the nature of the
Blu-ray format can be quite complicated).
5) Re-encode the video, I would recommend h264/AVC.
MeGUI,
Nero Recode,
RipBot264 etc. are some applications I would recommend (if you're using
MeGUI, grab the
x264 Blu-ray profiles from the page I linked to at the bottom of this post). At this point you will also need to decide if you wish to use a DTS audio stream or an
AC3 (
Dolby Digital) audio stream.
If you are using a DTS audio stream, you will need to make sure that you
do not crop the borders (the resolution must be 720p:1280 x 720 or 1080p:1920 x 1080).
If you are using AC3, it is safe to crop the borders if you wish.
Note: The reason for the borders is that a M2TS media file can play at any resolution. However, A M2TS media file can only play AC3 on
PS3 or Blu-ray stand alone (PC is different though). Blu-ray output supports DTS. If you try to author Blu-ray output with a resolution not conforming to the Blu-ray standard, you will get green bars on the screen during playback.
Also, if you wish to use multiple audio tracks and/or switchable subtitles, you will need to author to Blu-ray instead of a raw M2TS media file.
Now the next part will have two options depending if you wish to use AC3 or DTS (or multiple audio tracks, switchable subtitles etc.).
For AC3 (and one audio track, no switchable subtitles)...
1) If you need to re-encode DTS to AC3, you can use EAC3toGUI to do this (Sonic Cineplayer
HD-DVD audio decoder is needed too). Alternatively
MeGUI or Foobar2000 can also encode DTS to AC3. Output setting of 5.1 channels at 640Kbs is recommended.
2) Load the re-encoded video along with the AC3 track into tsMuxeR.
3) Export M2TS stream.
4) Burn as
UDF DVD data disc (automatic settings are fine).
Nero burning ROM or
ImgBurn are recommended burning applications.
If you wish to retain the DTS stream, your only option is to export an
AVCHD (BD-5/BD-9). Some other benefits of Blu-ray/BD-9/BD-5 over M2TS media files are chapter points, multiple audio streams, switchable subtitle tracks and stream language ID. You can use this method for those previously mentioned features also.
Here are the steps...
1) Load the re-encoded video and DTS audio into tsMuxeR.
2) Export Blu-ray folder structure.
3) Burn as UDF DVD data disc. You will need to set UDF to v2.50.
Nero and
ImgBurn are recommended for this.
Most of the mentioned applications can be found here (this is same one Trippy linked to):
http://forums.afterdawn.com/thread_view.cfm/639346
This thread might be interesting for you too, it has lots of info about tsMuxeR:
http://forums.afterdawn.com/thread_view.cfm/621809
taylor001, I'm sure most of this information may seem intimidating or daunting but I can assure you that if you have any questions on any of the above procedures, I or any of the other members of AfterDawn will be more than happy to help.
So if there's anything you're not sure of, ask away... :-D
